pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-3225-Bourree_7.ps) >>/Users/jc/w/tmp/Tune-3225-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/abc/bourree/Bourree_7.abc

Error exit status 256; here are some files to check:
[P=tuneget V=1/1 B=0 scale=0.70 512x512 PNG]
filesizedescription
Coll_32253.log 451525 Log file, useful mostly for debugging
Coll_32254.log 603265 Log file, useful mostly for debugging
Tune-3225-Bourree_7.abc 255 ABC music file with the extracted tune(s)
Tune-3225-Bourree_7.ps 33127 PostScript
Tune-3225-Bourree_7.txt 255 Plain-text file with the extracted tune(s)
Tune-3225-get.log 4373 Log file, useful mostly for debugging
Tune-32256-get.log 5603 Log file, useful mostly for debugging
These files should be available for 24 hours.